DE3312805C2 - Electromagnetic relay - Google Patents

Abstract

1. Electromagnetic relay, in particular miniature relay, with a housing block consisting of plastic material which has two side walls (3) running parallel to each other which have cut-out portions (26, 27) into which the magnet yoke (8) extends with its lateral edges without any play in such a way that the position of the magnetic system is fixed in the assembled state of the housing block, characterized in that the magnet yoke (18), viewed in the longitudinal direction (25), rests on each side at two points at a distance from each other on a supporting web (31, 32) in the cut-out portions (26, 27) and that in a first pair of cut-out portions (27) situated opposite to each other the supporting webs (32) which are there integral with said side walls (3) of the housing and the portions (34) opposite to these of the side walls (3) of the housing which limit the said cut-outs there are capable, through thermal and/or ultrasonic deformation, of being deformed and thereby cause a pivoting of the magnet yoke (18) around the supporting webs (31) in the second pair of cut-out portions in such a way that, by means of said change of position of said magnet yoke (18), the position of the armature (19) is adjustable in relation to the contact system (8) to be operated, the first pair of cut-out portions (27) being so disposed and the supporting webs (32) situated therein being of such a shape in the undeformed state that, even when the relay is not energized, the armature (19) is already in the operating position.

Description

tion 26 serves as a pivot point 33 for the magnet yoke 18th

To adjust the magnet system 15 with respect to the contact system 8, the magnet yoke 18 can be lowered in the recess 27 by printing on the cover part 5 from above with a hot and / or ultrasound stamp, the support web 32 of the recess 27 softening and is compressed downwards. This process takes place with simultaneous measurement of the contact distance with switching cams 23, ζ acting on the end 24 of the contact spring 10. B. by measuring the switching point when the voltage applied to the contact system 8. With precise adjustment, in particular during or after the switching from one to the other switching state, the stamp printing is eliminated or the punch completely lifted, so that the magnetic system 15 in the alignment _{t, n} th layer through the cooled and hardened, deförf 'mized support web 32 and at this point also if drawn down, cooled down and hardened-ϊ | ended part 34 of the cover 5 is firmly supported (; ^: i g. 4). The recess 27 with the support web 32 to be deformed is advantageous in the area of the pivot axis . se serving end edge 24 of the magnetic yoke 18 is going on and the lugs 29 are also arranged at the end of the magnetic yoke 18 §

j / i According to the invention, there is also the possibility jj speed, instead of two recesses 26,27 these to one »J are practically unique over the length of the magnetic yoke: | to summarize ches 18 extending recess. § Here the entire side edge of the magnet ■ | yoke 18 are in the recess. The on- £ position web 31 be formed by a corresponding shape of the I magnetic yoke 18 and thereby the * Pivot point can be set.

% It should be noted that it is necessary that the support web 33% and the recess 27 such angeord- '·' ■■ net are that in the original, so undeformed supply; stood, the magnet yoke 18 and thus the entire Ma-; ji gnetsystem 15 is too high and the upper pair of contacts h 11,13 is closed Deformation of the support web ό 32 and the part 34 of the cover 5 opens the pair of contacts 11,13 and the lower Contact pair 12, 14 is closed. This criterion is preferably used as a display and setting condition for the adjustment. 4;

The relay can be closed by a cover and, if necessary, by suitable measures, such as. B. by potting, be made washproof.

For this 1 sheet of drawings like this

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Claims (5)

1 2 of the latter are laterally projecting La patent claims: see on the yoke, which engage in a recess of a side wall during assembly. Here must 1. Electromagnetic Reiais, in particular misses the Koptaktsysteme after the installation of the magnetic miniature relay, with a housing whose side wall systems consist of plastic according to the installation position of the Magnetsyde and the recesses are adjusted. This is because of the elasticity of the have, in which the magnetic yoke with the lateral contact building materials is relatively complicated and tedious.
Edge extends in without play and thus in cooperation with DE-PS 9 29 736 it is already known that the magnet system was "- a relay, the contact system opposite the Maxiertist, characterized in that the magnet system is adjustable. This is done there magnet yoke (18), seen in the longitudinal direction (25), due to the fact that the contact system on the magnet system on each side (3) is pivotally supported at two points (26,27) on an angle lever each and pin or support web (31,32) In the recess an angle bar rests in different angular positions (26, 27) so that the side walls (3) consist of plastic that is permanently thermoplastically deformable on the magnet system by means of a screw connection, 15 can be adjusted and that at least in one recess (27) each With the present invention, the object is to be Side wall (3) the magnet yoke (18) can be adjusted by releasing a relay of the type mentioned at the beginning bar is that with the side wall (3) integrated design that the adjustment of the contact system is relative Support web (32) and the above to the magnet system or the contact system actuate cover part (34) each with a recess (27) through a hot anchor quickly and easily and as possible and / or ultrasonic deformation can be carried out on components in one layer without additional expenditure are xable, in which the armature (19) can be in the right, so that it can also be used with miniature relays
gen Adjustment position compared to the one to be actuated This task is performed by the Contact system (8) is located where the support web of claim 1 specified features solved.
(31) the other recess (£ 26 as a pivot point 25 are further advantageous details of the egg-finding (33) is used and that the recess (27) and the claim specified in the subclaims and in the following location web (32) in the undeformed state of the description of an exemplary embodiment of FIG are arranged that the contact system (8) described in the rest invention. It shows
state of the relay already in its working position. F i g. 1 is a sectional side view of a relay 30 Fig. 2 shows a reduced section of a view 2. Relay according to claim 1, characterized marked- from above without a housing cover, partially cut,
net that it is designed as a hinged armature relay F i g. 3 shows an enlarged section of one of the 3. Relay according to claim 2, dadv -ch marked savings before adjusting from the side and net that in each side wall (3) the recess (27) F i g. 4 shows the section of FIG. 3 after adjustment, with the support web (32) to be deformed and with 35 With 1 is a housing shell made of thermoplastic cover part (34) in the area of the magnet yoke (18) made of plastic with plug-in openings 2a and plug-in pins 26, adjacent leg (22) of the hinged anchor (19) of a side wall 3, a bottom part 4, a cover is part 5 and a front part 6 referred to. In the side wall 4. Relay according to one of claims 1 to 3, there- 3 connecting elements 7 are formed, which is characterized to the above characterized in that the contact system (8) «protruding contact system 8, consisting of egg above the magnetic yoke (18) is provided and Nem contact connection 9, one welded to this that the pivot point (33) between the contact spring 10 and attached to this connection (9) of the contact spring ^) (10) and the movable contact elements 11, 12, which with fixed contacts (11, 12,13,14) and the contact elements 13 and 14 to be deformed work together, guide, web (32) and the cover part (34) between the 45 A connection element 7 is connected to the contacts (11, 12, 13, 14) and the bearing point of the coil of a magnet system 15 connected, which are still provided from hinged armature (19), and that the coil body 16, a coil core 17, a hinged armature (19) at the end (24) of the contact spring ^) remote coil core 17 connected magnetic yoke 18 and (10) engages a movable arm formed in the example as a hinged armature 5. Procedure üunv adjusting a relay with the 50 borrowed armature 19 consists of the latter is an on-characteristics according to one of claims 1 to 4, compression spring 20 against the end edge 21 of the magnet yoke characterized in that after being pressed together 18 and is mounted so as to be pivotable. In the rest building the adjustment as a function of the contact spacing lies on the one leg 22 of the armature 19 the contacts (11,12,13,14) of the magnetic yoke 18 to be actuated stood up. One attached to anchor 19 the contact system (8) is made in such a way that 55 plastic switching cams 23 can be the end 24 of the conduit Actuate a tension clock spring 10 on the contacts (11, 12, 13, 14). created and the adjustment process at or after Two such housing shells 1 form a housing part, switching from one to the other switching in which the magnet system 15 is fixed in position. This state of affairs is terminated. housing part can also consist of several parts, both 60 for example as described in DE-GM 78 28 023 and shown. According to the invention, two are in the side wall 3, seen in the direction of the longitudinal axis 25 Recesses 26 and 27 one behind the other at a distance The present invention relates to an electrically ordered. A lateral extension 28 or 29 engages in this tromagnetic relay, especially miniature relay. 65 of the magnetic yoke 18 backlash-free. The lower surface 30 according to the preamble of claim 1, each of the recesses 26, 27 has an edition victory31 Such a relay is known, for example, from or 32, on which the shoulder 28 or 29 rests. Of the the DE-PS 22 13 146 and the DE-GM 78 28 023. At the support point of the in F i g. 1 provided on the left